neopixel pmos control, power hold implemented

lib/iopins.h

@@ -108,12 +108,12 @@ bool    pin_read_n(uint8_t pin);
 
 
 /** CHeck if pin is low */
-#define pin_is_low(pin)   (get_pin(pin) == 0)
+#define pin_is_low(pin)   (pin_read(pin) == 0)
 bool    pin_is_low_n(uint8_t pin);
 
 
 /** CHeck if pin is high */
-#define pin_is_high(pin)  (get_pin(pin) != 0)
+#define pin_is_high(pin)  (pin_read(pin) != 0)
 bool    pin_is_high_n(uint8_t pin);
 
 

main.c

@@ -33,6 +33,8 @@ void setup_io(void)
 
 	as_input(PIN_PWR_KEY);
 	as_output(PIN_PWR_HOLD);
+	as_output(PIN_NEOPIXEL_PWRN);
+	pin_up(PIN_NEOPIXEL_PWRN); // turn neopixels OFF
 
 	// PIN_LIGHT_SENSE is ADC exclusive, needs no config
 }
@@ -74,13 +76,22 @@ void main()
 	usart_init(BAUD_115200);
 	//usart_isr_rx_enable(true); // enable RX interrupt handler
 
-	adc_init(ADC_PRESC_128);
 	setup_io();
-	setup_pwm();
+
+	// Stay on
+	pin_up(D13); // the on-board LED (also SPI clk)
+	pin_up(PIN_PWR_HOLD);
+	// Wait for user to release the power key
+	while (pin_is_high(PIN_PWR_KEY));
 
 	// SPI conf
 	// TODO verify the cpha and cpol. those seem to work, but it's a guess
 	spi_init_master(SPI_LSB_FIRST, CPOL_1, CPHA_0, SPI_DIV_2);
+	adc_init(ADC_PRESC_128);
+	setup_pwm();
+
+	// Turn neopixels ON
+	pin_down(PIN_NEOPIXEL_PWRN);
 
 	// globally enable interrupts
 	sei();

pinout.h

@@ -12,7 +12,7 @@
 #define PIN_DISP_D   D11 // MOSI
 #define PIN_DISP_CP  D13 // SCK
 #define PIN_DISP_STR D10 // NSS, unused for SPI
-#define PIN_DISP_OE  D3  // SCK
+#define PIN_DISP_OE  D3  // OE (PWM)
 
 // Touch keys
 #define PIN_KEY_1 A0
@@ -25,6 +25,7 @@
 
 // NeoPixel data
 #define PIN_NEOPIXEL D2
+#define PIN_NEOPIXEL_PWRN D4 // PMOS gate
 
 // Power
 #define PIN_PWR_KEY A4 // Direct input from the power key, used for power-off